of Firefox & Solarize

Referring to http://ethanschoonover.com/solarized, it's actually quite easy to convert Firefox default color scheme to be solarized

referring to Tools | Options | Content | Colors, uncheck
- Use system colors
- Allow pages ....

next, open about:config | color

change the below options / value

browser.anchor_color        - link color
browser.display.background_color    - default background
browser.display.foreground_color    - default content / text
browser.visited_color        - visited / clicked link

 Just set the above four value following the hex values from Ethan's site above

example :
background - #073642 (base02)
foreground - #eee8d5 (base2)